Bijelac reef, located off Lastovo Island, offers a diverse underwater topography featuring a reef, wall, and cave system. The site reaches depths between 14 and 55 metres, with an average depth of 20 metres. Divers encounter mild currents and visibility ranging from 15 to 30 metres. Due to the significant depth and the presence of overhead environments within the cave and swim-through sections, this site is suited for intermediate divers. Boat access is required for all dives. Water temperatures fluctuate between 14 and 18 degrees Celsius throughout the year. Night diving is permitted at this location, though divers should carry both primary and backup torches for the cave sections.

Bijelac Islet, located off Lastovo, Croatia, is a diverse marine site defined by a dramatic underwater canyon that splits the islet. The topography includes vertical walls, reefs, and caves, offering depths between 10 and 60 metres. Divers and snorkellers can explore these structures, which are home to a variety of Mediterranean reef fish and invertebrates. Access is by boat only, and the site is suitable for intermediate divers due to the potential for strong currents. Visibility is variable, ranging from 15 to 55 metres, with water temperatures typically between 14 and 18 degrees Celsius. Night diving is permitted at this location.

Kaleb Plic is a reef and wall dive located off Lastovo Island in South Dalmatia. The site features a wall that drops from 12 metres to a maximum depth of 62 metres. Divers can expect consistent visibility of 30 metres along the structure. A moderate current is typically present, making boat access essential and requiring careful planning around slack water. Due to water temperatures ranging between 14 and 18 degrees Celsius, a thicker wetsuit or drysuit is recommended. This site is suited for intermediate divers, though the deeper sections require advanced experience.

Crnac is a varied dive site off Lastovo Island featuring a reef, cave, and drop-off. The site is accessible only by boat and offers a depth range of 10 to 42 metres, with an average depth of 15 metres. Visibility is consistently 30 metres, allowing divers to view the topography clearly. Conditions are generally manageable with mild currents. Divers should maintain good buoyancy control to avoid contact with sharp coral and rocks present along the cave entrance and the drop-off edge. Water temperatures range from 14 to 19 degrees Celsius, making a 5mm wetsuit advisable for most of the year.

Tovari Islet, located near Lastovo, offers a diverse underwater topography consisting of a reef, a wall, and several small caves and overhangs. The site features a shallow platform ideal for observing macro life, while the wall drops to a maximum depth of 40 metres with an average depth of 20 metres. Access is by boat only, and the site is suitable for intermediate divers. Visibility is consistently around 30 metres with mild currents. Divers should be aware of overhead environments within the caves and the presence of sea urchins. Species recorded around this area include Turkish Wrasse, Kingfish, Bream, and various crustaceans.

Zaklopatica Cave is a combined cave and reef system located off Lastovo. The site features depths ranging from 12 to 30 metres, with an average depth of 20 metres. Divers encounter mild currents and visibility between 10 and 30 metres. The cave interior receives ambient light, though conditions vary seasonally with water temperatures between 14 and 20 degrees Celsius. Access is by boat only. Divers should exercise caution near the cave entrance and reef structure, as the rocks and coral are sharp. The site is suitable for intermediate divers and is also available for night diving.

Trstenik is a versatile shore-entry dive site located in Lastovo, Croatia, offering a diverse underwater landscape that includes reefs, walls, caves, and canyons. Suitable for beginners, the site features depths ranging from 3 to 20 metres. Divers can navigate these structures at a relaxed pace due to the mild currents. Visibility at the site typically spans 10 to 30 metres. Water temperatures fluctuate between 14 and 21 degrees Celsius throughout the year, with a thermocline commonly present. As conditions vary by season, it is recommended to verify local facility availability before planning a dive.

Prznjak is a reef and cave site located off the coast of Lastovo, Croatia. The topography features a mix of open reef and enclosed cave passages, with depths ranging from 1 to 30 metres and an average depth of 9 metres. Divers experience mild currents and visibility typically between 15 and 30 metres. Access to this site is by boat only, and guided tours are available from operators in Korcula. Due to the cave sections, a dive torch is recommended for navigation. Water temperatures fluctuate between 14 and 20 degrees Celsius, requiring appropriate thermal protection depending on the season.